Finding the Fourth Proportional to 130,118.68, 194,638.10 and 122,147.07
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Solution
The fourth proportional to 130,118.68, 194,638.10 and 122,147.07 is: 182,713.75
Step by Step Solution
- Step 1: Write the proportion equation
130,118.68 : 194,638.10 = 122,147.07 : x - Step 2: Convert to fraction form
130,118.68/194,638.10 = 122,147.07/x - Step 3: Cross multiply
130,118.68x = 194,638.10 × 122,147.07 - Step 4: Simplify right side
130,118.68x = 23,774,472,041.44 - Step 5: Solve for x
x = 23,774,472,041.44/130,118.68 - Step 6: Final answer
x = 182,713.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.